floem/views/
drag_resize_window_area.rs

1use winit::window::ResizeDirection;
2
3use crate::{
4    action::drag_resize_window,
5    event::listener,
6    style::CursorStyle,
7    view::{IntoView, View, ViewId},
8};
9
10use super::Decorators;
11
12/// A view that will resize the window when the mouse is dragged. See [`drag_resize_window_area`].
13///
14/// ## Platform-specific
15///
16/// - **macOS:** Not supported.
17/// - **iOS / Android / Web / Orbital:** Not supported.
18pub struct DragResizeWindowArea {
19    id: ViewId,
20}
21
22/// A view that will resize the window when the mouse is dragged.
23///
24/// ## Platform-specific
25///
26/// - **macOS:** Not supported.
27/// - **iOS / Android / Web / Orbital:** Not supported.
28pub fn drag_resize_window_area<V: IntoView + 'static>(
29    direction: ResizeDirection,
30    child: V,
31) -> DragResizeWindowArea {
32    let id = ViewId::new();
33    id.set_children([child.into_view()]);
34    DragResizeWindowArea { id }
35        .on_event_stop(listener::PointerDown, move |_, _| {
36            drag_resize_window(direction)
37        })
38        .style(move |s| {
39            let cursor = match direction {
40                ResizeDirection::East => CursorStyle::ColResize,
41                ResizeDirection::West => CursorStyle::ColResize,
42                ResizeDirection::North => CursorStyle::RowResize,
43                ResizeDirection::South => CursorStyle::RowResize,
44                ResizeDirection::NorthEast => CursorStyle::NeswResize,
45                ResizeDirection::SouthWest => CursorStyle::NeswResize,
46                ResizeDirection::SouthEast => CursorStyle::NwseResize,
47                ResizeDirection::NorthWest => CursorStyle::NwseResize,
48            };
49            s.cursor(cursor)
50        })
51}
52
53impl View for DragResizeWindowArea {
54    fn id(&self) -> ViewId {
55        self.id
56    }
57
58    fn debug_name(&self) -> std::borrow::Cow<'static, str> {
59        "Drag-Resize Window Area".into()
60    }
61}
floem/views/drag_resize_window_area.rs

floem/views/
drag_resize_window_area.rs
